package com.sky.aspect;

import com.sky.annotation.Autofill;
import com.sky.constant.AutoFillConstant;
import com.sky.context.BaseContext;
import com.sky.enumeration.OperationType;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MemberSignature;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;
import java.time.LocalDateTime;

@Aspect
@Component
@Slf4j
public class AutoFillAspect {
    @Pointcut("@annotation(com.sky.annotation.Autofill)")
    public void autoFillPointCut()
    {

    }
    @Before("autoFillPointCut()")
    public void autoFill(JoinPoint joinPoint)
    {
        log.info("开始进行公共字段自动填充");
    MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        Autofill autofill = signature.getMethod().getAnnotation(Autofill.class);
        OperationType operationType=autofill.value();
        Object[] args = joinPoint.getArgs();
        if(args==null||args.length==0)
        {
            return;
        }
        Object entry = args[0];
        LocalDateTime now=LocalDateTime.now();
        Long currentId= BaseContext.getCurrentId();
        if(operationType==OperationType.INSERT)
        {

            try {
                Method setCreateTime = entry.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_TIME, LocalDateTime.class);
                Method setUpdateUser = entry.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER, Long.class);
                Method setCreateUser = entry.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_USER, Long.class);
                Method setUpdateTime = entry.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME, LocalDateTime.class);
                setCreateTime.invoke(entry,now);
                setCreateUser.invoke(entry,currentId);
                setUpdateTime.invoke(entry,now);
                setUpdateUser.invoke(entry,currentId);

            } catch (Exception e) {
                throw new RuntimeException(e);
            }


        }
        else if(operationType==OperationType.UPDATE)
        {
            try {

                Method setUpdateUser = entry.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER, Long.class);

                Method setUpdateTime = entry.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME, LocalDateTime.class);


                setUpdateTime.invoke(entry,now);
                setUpdateUser.invoke(entry,currentId);

            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }



    }


}
